Birch, Martin John and Hargreaves, J. K. (1999) Investigation of Earth's Ionosphere using the Global Positioning System. In: 1999 Spring MIST, 31 March-2 April 1999, Cumbria, England.
Full text not available from this repository.
Official URL: https://clok.uclan.ac.uk/56006
Repository Staff Only: item control page